3 Answers
3

type in sudo apt-get install synaptic
put in your password
tell it yes, you want to download and install
after complete
type exit
find synaptic package manager
use the command from the menu, fix broken packages
this should fix any broken packages causing the error

Or if you don't want to install Synaptic, you can configure any half configured packages and install missing dependencies which might be causing the problem. Press the Super key and search for and start the Terminal.